DOS ain't dead

GV32 (DOSX)

posted by Japheth , Germany (South), 22.02.2008, 06:54
(edited by Japheth on 22.02.2008, 07:07)

> > - A native DOS application. Then you can use all known DOS/DPMI features,
> > but no importing from DLL's,

No, the "dll importing" was intentionally separated from the Win32 emulation to make it available for true DOS applications as well (see DPMILD32.TXT).

> Well I would like to use a hybrid system where the HX Windows emulator
> provides "extra DPMI functionality" by emulating (some of the) known and
> documented Win32 API calls.
>
> That is, A DPMI program with extensions provided by Japheths Win32
> emulator.
> Is that such a bad idea?

No, I wrote some small apps which are "hybrid". And IIRC it's mentioned in the docs that it is possible.

However, there are at least 2 catches with this approach:

- it's not documented in detail what resources are reserved for the Win32 emulation layer. If you're using your brain and read DKRNL32.TXT, you will possibly find out most of it, though.

- the win32 emulation might be increased and use hardware which currently is "free" (implementing the serial COMM API for example), thus breaking an existing "hybrid" application which accessed this hardware directly.

These are no severe restrictions and if you link the Win32 emulation statically or use your "private" version of DKRNL32.DLL, the second catch will even become a non-issue.

---
MS-DOS forever!

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Complete thread:

DPMILD32 issues - DOS386, 19.02.2008, 03:06 (DOSX)
- DPMILD32 issues - Japheth, 19.02.2008, 04:25
  - DPMILD32 issues - spawn trouble: solution found ??? - DOS386, 20.02.2008, 03:40
    - DPMILD32 issues - spawn trouble: solution found ??? - Japheth, 20.02.2008, 12:13
      - DPMILD32 issues - spawn trouble: solution found ??? - DOS386, 21.02.2008, 01:55
        DPMILD32 issues - spawn trouble: solution found ??? - Japheth, 21.02.2008, 05:32
        DPMILD32 issues - spawn trouble: solution found ??? - jaybur, 21.02.2008, 07:59
        DPMILD32 issues - spawn trouble: solution found ??? - Japheth, 21.02.2008, 10:47
        DPMILD32 issues - spawn trouble: solution found ??? - jaybur, 21.02.2008, 12:02
        DPMILD32 issues - spawn trouble: solution found ??? - Japheth, 21.02.2008, 12:42
        DPMILD32 issues - spawn trouble: solution found ??? - jaybur, 22.02.2008, 01:49
        GV32 - DOS386, 22.02.2008, 02:48
        GV32 - jaybur, 22.02.2008, 04:00
        GV32 - Japheth, 22.02.2008, 06:54
        GV32 - jaybur, 22.02.2008, 07:45
        DPMILD32 issues - spawn trouble: solution found ??? - DOS386, 22.02.2008, 02:57
        DPMILD32 issues - spawn trouble: solution found ??? - Japheth, 22.02.2008, 07:18
        DPMILD32 issues - POASM - DOS386, 26.02.2008, 13:54
        The "million flies..." argument again? - Japheth, 26.02.2008, 16:32
        The "million flies..." argument again? - rr, 26.02.2008, 17:47
        The "million flies..." argument again? - Japheth, 27.02.2008, 07:38
        The "million flies..." argument again? - rr, 27.02.2008, 09:37
        The "million flies + ONE elephant" argument again - DOS386, 01.03.2008, 02:29
        The "million flies + ONE elephant" argument again - Japheth, 01.03.2008, 05:58
        DOS386 commands! - Steve, 01.03.2008, 06:35
        [] issues (for GR keyboard users) - Rugxulo, 27.02.2008, 01:36
        [] issues - FASM riddle waiting to be solved - Japheth, 27.02.2008, 07:33
        [] issues - FASM riddle waiting to be solved - rr, 27.02.2008, 09:44
        [] issues - FASM riddle waiting to be solved - Japheth, 27.02.2008, 18:28
        [] issues - FASM riddle waiting to be solved - rr, 27.02.2008, 21:27
        [] issues - FASM riddle waiting to be solved - Rugxulo, 27.02.2008, 19:05
        [] issues - FASM riddle waiting to be solved - rr, 27.02.2008, 21:32
        [] issues - FASM riddle waiting to be solved - Rugxulo, 28.02.2008, 00:28
    - DPMILD32 issues - spawn trouble: solution found ??? - flox, 21.02.2008, 09:42